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NFSv4.1: Label each entry in the session slot tables with its slot number

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Instead of doing slot table pointer gymnastics every time we want to
know which slot we're using.

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
This commit is contained in:
Trond Myklebust 2012-11-16 12:45:06 -05:00
parent e3725ec015
commit df2fabffba
3 changed files with 9 additions and 6 deletions
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12
fs/nfs/nfs4proc.c
View file

@ -526,9 +526,9 @@ static int nfs41_sequence_done(struct rpc_task *task, struct nfs4_sequence_res *
* returned NFS4ERR_DELAY as per Section 2.10.6.2
* of RFC5661.
*/
dprintk("%s: slot=%td seq=%d: Operation in progress\n",
dprintk("%s: slot=%u seq=%u: Operation in progress\n",
__func__,
slot - session->fc_slot_table.slots,
slot->slot_nr,
slot->seq_nr);
goto out_retry;
default:
@ -671,9 +671,9 @@ int nfs4_setup_sequence(const struct nfs_server *server,
if (session == NULL)
goto out;
dprintk("--> %s clp %p session %p sr_slot %td\n",
dprintk("--> %s clp %p session %p sr_slot %d\n",
__func__, session->clp, session, res->sr_slot ?
res->sr_slot - session->fc_slot_table.slots : -1);
res->sr_slot->slot_nr : -1);
ret = nfs41_setup_sequence(session, args, res, task);
out:
@ -5669,8 +5669,10 @@ struct nfs4_slot *nfs4_alloc_slots(struct nfs4_slot_table *table,
tbl = kmalloc_array(max_slots, sizeof(*tbl), gfp_flags);
if (tbl != NULL) {
for (i = 0; i < max_slots; i++)
for (i = 0; i < max_slots; i++) {
tbl[i].table = table;
tbl[i].slot_nr = i;
}
}
return tbl;
}

2
fs/nfs/nfs4xdr.c
View file

@ -5547,7 +5547,7 @@ static int decode_sequence(struct xdr_stream *xdr,
}
/* slot id */
dummy = be32_to_cpup(p++);
if (dummy != res->sr_slot - session->fc_slot_table.slots) {
if (dummy != res->sr_slot->slot_nr) {
dprintk("%s Invalid slot id\n", __func__);
goto out_err;
}

1
include/linux/nfs_xdr.h
View file

@ -189,6 +189,7 @@ struct nfs4_channel_attrs {
struct nfs4_slot {
struct nfs4_slot_table *table;
unsigned long renewal_time;
u32 slot_nr;
u32 seq_nr;
};